Did some of the TDS Telecom Offices have this receiver off hook tone - Video Dailymotion

Did some of the TDS Telecom Offices have this receiver off hook tone - Video Dailymotion
   Did some of the TDS Telecom offices have this ROH tone? I know of 1 phone company that they bought out that had this ROH tone. and that was Concord Telephone Exchange Inc. in Knoxville Tn.
How many phone companies did they buy out with this ROH tone? Did they kepp the same ROH tone that the previous company had or did did TDS change out the ROH tone? What kind of ROH tone did they have? What is the Technical name for that ROH tone. Please let me know. Thank you.